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Millbrae · Building on your lot

Signs on homes in Millbrae

Millbrae's own rules on signs on homes, with the code text for every value.

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Each rule below links to the section of the Millbrae Municipal Code it was read from, with the code text one click away (checked October 2026). General information, not legal advice.

What Millbrae's code says

Millbrae code What Millbrae's code adds
Election and other noncommercial signs
  • No sign permit needed; remove within 10 days after the election.
    Applies: Election signs on private property with the owner's or occupant's consent; none on public property or in the public right-of-way.
    § 10.10.300 · code text
    Signs shall be removed within ten days following the election by the person who erected the sign or the owner/occupant of the property upon which the sign is erected.
For-sale and open-house signs
  • Up to 4 square feet and 6 feet high; 1 sign per address for each abutting street.
    Applies: On-premises real estate sign in R-1 and R-2 districts; only while for sale, rent or lease and no more than 15 days after.
    § 10.10.300 · code text
    On-premises real estate signs in the R-1 and R-2 zoning districts shall not exceed four square feet in area and six feet in height.
  • Up to 9 square feet and 6 feet high if on a pole; 1 sign per address per abutting street.
    Applies: On-premises real estate sign in districts other than R-1 and R-2.
    § 10.10.300 · code text
    All other districts are permitted nine square feet of area and six feet of height if sign is placed on a pole.
  • Up to 4 square feet each; 2 per address; 8 a.m. to 5 p.m. on open house days.
    Applies: Off-premises portable open house real estate signs.
    § 10.10.300 · code text
    Off-premises portable real estate signs shall not exceed four square feet in area.
Other temporary signs
  • 60 days per year per address; 1 sign per frontage, up to 32 square feet; not freestanding or in right-of-way.
    Applies: Exterior temporary signs, banners, pennants, portable signs and similar, which need a temporary sign permit.
    § 10.10.300 · code text
    The temporary sign permit shall be limited to sixty calendar days per year, per address.

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

What signs may I put up at my home in Millbrae?

Millbrae's code: No sign permit needed; remove within 10 days after the election. (Election signs on private property with the owner's or occupant's consent; none on public property or in the public right-of-way.) (§ 10.10.300); Up to 4 square feet and 6 feet high; 1 sign per address for each abutting street. (On-premises real estate sign in R-1 and R-2 districts; only while for sale, rent or lease and no more than 15 days after.) (§ 10.10.300).

General information, not legal advice.

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Millbrae Municipal Code — full text